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Note 7 - Property and Equipment
12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
7.
Property and Equipment

Property and equipment are summarized as follows (in thousands):

   
As of December 31,
 
   
2013
   
2012
 
Construction equipment
  $ 127,199     $ 130,014  
Transportation equipment
    19,132       19,266  
Buildings
    10,512       10,176  
Office equipment
    2,025       1,279  
Leasehold Improvement
    816       -  
Land
    5,309       4,916  
Water rights
    200       200  
      165,193       165,851  
Less accumulated depreciation
    (71,510 )     (63,543 )
    $ 93,683     $ 102,308